Street-bridge for fire-hose



(NoModel.) y

H. HERRMANN l8v W. B. DOOLITTLE.

STREET BRIDGE POR EIRE HOSE.

No. 322,287.y Patented July 14, `1885.

[UVE/7x0 2-5 UNITED .STATES PATENT OFFICEG,

HENRY HERRMANN ANI) WILLIAM B. DOOLITTLE, OF CHICAGO, ILLINOIS.

STREET-BRIDGE FOR FIRE-HOSE'.

SPECIFICATION forming part of Letters Patent No. 322,287, dated July 14,1885.

Application filed March 9, 1885. (No model.) i

.To all whom it may concern,.-

Beit known that we, HENRY HERRMANN an WILLIAM B. DooLITTLE, citizens ofthe'United States, residing at Chicago, in the county of Cook and Stateof Illinois, have invented certain new and useful Improvements inStreet- Bridges for Fire-Hose, of which the following is aspecification, to wit:

This invention relates to street-bridges for fire-hose, and it consistsin the peculiar construction and arrangement of aportable bridge forcarrying iire-hose across streets, substantially as will be hereinaftermore fully set forth and claimed.

In order to enable others skilled in the art to which our inventionappertains to make and use the saine, we will now proceed to describeits construction and operation, referring to the accompanying drawing,which represents a perspective view of our invention as applied in use.

A represents a head or block to which is hinged three folding legs orstandards, A', as shown inthe drawing. 'Ihelegs are connected by chainsa a, which act as braces to keep them from spreading apart, and arelengthcned or shortened at will, to allow for inequalities 0f theground, by means of hooks a', by which they are attached to the legs.Two of these stands are used, one upon each side 0f a cartrack, andconnected by a cross-bar, B, hav. ing Tshaped ends b, received intransverse grooves or recesses b of the head-blocks- Each of thehead-blocks is provided with a fork7 C, to receive and hold the hose,on@ arm 0f which is grooved, as at c, for the passage of a rope, and theother made higher, and provided with a pulley-wheel, c', over which therope is rove, as shown. The crossbar B is provided with one or moreretaining-forks, d, in which the hose lies, andthe legs A are also, whendesired, provided with similar forks to serve as guides.

In large cities much annoyance is felt by the stopping of all traic,both of wagons and street cars, by the laying 'of a fire-hose across ast-reet, and it is to avoid this that our invention is designed. Thedevice is light and folds into a compact bundle for easy transportation,and when wanted for use one of the supports is placed upon each side ofa street or a car-track, as may be desired, and the cross-bar placed inposition thereon. The

bridge is then quickly and easily elevated, and i the legs extended atdifferent angles, according tothe nature of the ground, and preventedfrom slipping by being connected by the chains, as in the drawing. Theropes D, which pass over the pulleys, are then connected to the hose,and the latter quickly hauled up to the top of the bridge, Where it liesin the forks O and d, and cars and vehicles are free to pass under it.

It is evident that the device may be made of any suitable height and ofsufficient length to span the whole or onlya part of the street; and wedesire to construct it of any material, but prefer gas-pipe as formingalight and strong frame especially suited to the purpose.

Having thus fully described our invention, what we claim as new, anddesire to secure by Letters Patent, is-

1. In a device for elevating hose across a street, a pair ofsupporting-frames, in combination witha connecting-bar adapted to spanthe street or track, and means for elevating the hose to the top of thesupports, substantially as and for the purpose set forth.

2. A pair of heads provided' with hinged legs or supports and having ayoke or fork for receiving the hose, in combination with a detachableconnecting-bar provided with si inilar forks, and ropes running overpulleys at the top of the device for lifting the hose to position,subst-antially asand for the purpose set forth.

' 3. The heads A, having hinged legs A', connected by chains c a, andthe forks C, having one arrn provided witha pulley, in combination withthe crossebar B, detachably con nected to the heads, and provided withthe forks d, and the ropes D, for lifting the hose upon the frame, allconstructed and arranged to operate substantially as` and for thepurpose set forth.

In testimony whereof we affix our signatures in presence of twowitnesses.

HENRY IIERRMANN. WILLIAM B. DOOLITTLE. Witnesses:

W. C. MCARTHUR, CHAs. KREssMANN.

